I've been using my double do and I have been maxing out each time at around 15,464, but my buddy has using his double xp as well as fast track and he is getting around 17,000 not sore of his exact amount. Like an idiot I pick BO2 over Halo 4 on release day so I never got a specialization code, so I had to buy one off of EBay. So I hope to be using fast track tonight and get even more points before double XP is over with.

Even without Fast Track, you would still be earning more XP than players were earning in the first two months of Halo 4. The max (before they buffed it) was around 13k with both double XP and Fast Track; now you can get just 15,500 with Double XP alone. Trust me, you got it easy.